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Finding the Fourth Proportional to 498,338.33, 747,481.37 and 143,338.41

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Solution

The fourth proportional to 498,338.33, 747,481.37 and 143,338.41 is: 215,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,338.33 : 747,481.37 = 143,338.41 : x
  2. Step 2: Convert to fraction form
    498,338.33/747,481.37 = 143,338.41/x
  3. Step 3: Cross multiply
    498,338.33x = 747,481.37 × 143,338.41
  4. Step 4: Simplify right side
    498,338.33x = 107,142,790,363.73
  5. Step 5: Solve for x
    x = 107,142,790,363.73/498,338.33
  6. Step 6: Final answer
    x = 215,000.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.